Spindle



c. A. PR'OULX.

SPINDLE.

ABPLlCATlQN FILED DEC. 4. 1919.

Patented May 25,1920.

lllli 'I'ln UNITED b'lA'ltilft CHARLES A. IPBOULX, O33 WODNSOCKET, Rl-IQDE ISLAND.

SPINDLE.

Specification of Letters Patent.

Patented May .25, 1920.

Application filed December 4, 1919. Serial No. 342,328.

To all whom it may concern:

Be it known that 1, CHARLES A. PnoULX, a citizen of the United States, residing at Woonsocket, in the county of Providence and State of Rhode Island, have invented new and useful Improvements in Spindles, of which the following is a specification.

My present invention pertains to spindles that are used to support a bobbin or other yarn holding device as employed on twisting machines and the like in which the spindle remains stationary and the bobbin rotates about the same incident to the unwinding of the yarn from said bobbin.

The object of the invention is to centralize the spool or bobbin about the supporting spindle and this with but a slight amount of friction being produced between the bobbin and spindle and the means I employ to centralize the bobbin.

Other objects and advantageous features of the invention will be fully understood from the following description and claims when the same are read in connection with the drawings accompanying and forming a part of this specification in which:

Figure 1 is a sectional view of a bobbin and showing the means I employ to centralize the spindle within the bobbin.

Fig. 2 illustrates a modified form of the bobbin and spindle centralizing means, and

Fig. 3 is a side elevation of 2.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

1 is a stationary spindle and 4 is a stationary base secured to the spindle in any approved manner. A bobbin 2 is designed to be placed upon the spindle 1 and is supported in a rotatable manner by the spindle, the bobbin in Fig. 1 being illustrated as clothed with the yarn 3. The arrangement so far described being for the purpose to permit the yarn being withdrawn from the bobbin into the finished product.

Under normal conditions the spindle 1 is generally much smaller in diameter than the internal bore of the bobbin and hence the bobbin will wabble during the unwinding of the yarn from the bobbin causing the tension on the yarn to be very uneven and resulting in breakage of the yarn.

To overcome this feature I have produced the bobbin centralizing means which consists of a ring or washer 6 adjacent the base l and intermediate the spindle and in ternal bore of the bobbin. Arranged above the ring 6 and at a point slightly above the longitudinal center of the spindle 1 provide a second ring 7 and in order to overcome a great amount of friction about these washers they are of a size to permit them to rotate about the spindle l incident to the rotation of the bobbin 2. Moreover, in order to reduce the friction between the washers and internal bore of the bobbin, the washers are preferably made of round wire. The washer 7 is supported in any desired manner as by the pins 8 and collar 9 as illustrated; the collar 9 being to prevent the washer 7 being removed from the spindle during the doffing of the bobbin. In order to prevent the bobbin from splitting at its lower end ll provide the well known ferrule which forms no part of my invention.

In Figs. 2 and 3 I illustrate an antifriction device for use in connection with the washers and it consists of the washer 10 having a skirt that rests on the base 4 and is provided in its lower end with a ball race in which the anti-friction balls 11 run.

lhe washer 10 may be formed as a separate element from the skirt or anti-friction device in the discretion of the manufacturer. In Figs. 2 and 3 it will be noted that the ring 7 be retained on the spindle by means of a flange 12 that is produced on said spindle.

It will be gathered from the foregoing that the device will prevent wabbling of the bobbin and hence breakage of the yarn, also that my improvements may be applied to spindles and bobbins at present in use, and that it is cheap to produce and comprises no parts that are likely to become lost.

I would distinctly have it understood that the size of the washers and anti-friction means may be increased or decreased at any time without departure from the scope of my appended claims.

Having described my invention, what I claim and desire to secure by Letters-Patout is:

1. In a device for the purpose set forth, the combination of a stationary spindle, a bobbin rotatable about the spindle and havinc: an internal bore of slightly larger diameter than the spindle. a base secured to the spindle. a wash er resting on the base and between the spindle and internal bore of the bobbin, anti-friction means below the washer and a second washer retained on the spindle intermediate the first-named washer and the upper end of the spindle and means for holding the second washer in its proper position; said washers being formed in such a the combination of a spindle, a bobbin surrounding the spindle and rotatable therewith and means interposed between the spindle and bobbin for retaining them at the same distance at all times during the rotation of the bobbin; said means being so constructed and arranged to overcome any fricmanner as to minimize the amount of friction between itself and the bobbin and spindle.

In testlmony whereof I have hereunto set my hand in presence of two subscribing witnesses.

CHARLES A. PROULX.

Witnesses HATTIE E. SPAULDING, EDGAR L. SPAULDING. 

